Locally measured movement smoothing of GNSS position fixes
First Claim
1. A method of improving position determination of a device using locally measured movement, said method comprising:
- accessing a first position fix of a Global Navigation Satellite System (GNSS) receiver system of a device;
accessing a second position fix of said GNSS receiver system at a subsequent time to said first position fix;
obtaining locally measured device movement information, from at least one sensor that is in a known physical relationship to said device, for a time period after said first position fix and no later than said second position fix, wherein said at least one sensor comprises an image capture device; and
improving a quality of measurement of said second position fix by disciplining said second position fix based on said locally measured device movement information.
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Accused Products
Abstract
A method of improving position determination of a device using locally measured movement. A first position fix of a Global Navigation Satellite System (GNSS) receiver system of a device is accessed. A second position fix of the GNSS receiver system is accessed at a time subsequent to the first position fix. Locally measured device movement information is obtained from at least one sensor, that is in a known physical relationship to the device, for a time period after the first position fix and no later than the second position fix, wherein the at least one sensor comprises an image capture device. The quality of measurement of the second position fix is improved by disciplining the second position fix based on the locally measured device movement information.
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Citations
49 Claims
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1. A method of improving position determination of a device using locally measured movement, said method comprising:
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accessing a first position fix of a Global Navigation Satellite System (GNSS) receiver system of a device; accessing a second position fix of said GNSS receiver system at a subsequent time to said first position fix; obtaining locally measured device movement information, from at least one sensor that is in a known physical relationship to said device, for a time period after said first position fix and no later than said second position fix, wherein said at least one sensor comprises an image capture device; and improving a quality of measurement of said second position fix by disciplining said second position fix based on said locally measured device movement information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A non-transitory computer readable storage medium having computer readable instructions stored thereon for causing a computer system to perform a method of improving position determination of a device using locally measured movement, said method comprising:
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accessing a first position fix of a Global Navigation Satellite System (GNSS) receiver system of a device; accessing a second position fix of said GNSS receiver system at a subsequent time to said first position fix; obtaining locally measured device movement information, from at least one sensor that is in a known physical relationship to said device, for a time period after said first position fix and no later than said second position fix, wherein said at least one sensor comprises an image capture device; and improving a quality of measurement of said second position fix by disciplining said second position fix based on said locally measured device movement information. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A system for improving position determination of a device using locally measured movement, said system comprising:
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a locally measured movement (LMM) smoothing logic component implemented by a processor for accessing a first position fix of a Global Navigation Satellite System (GNSS) receiver system of a device and for accessing a second position fix of said GNSS receiver system at a subsequent time to said first position fix; an image capture device for obtaining locally measured device movement information from at least one sensor, that is in a known physical relationship to said device, for a time period after said first position fix and no later than said second position fix; and wherein said LMM smoothing logic is further configured for improving a quality of measurement of said second position fix by disciplining said second position fix based on said locally measured device movement information. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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Specification